Good evening . This is Peter in Room 310 .   Good evening . May I help you ?   I'm going to Beijing early tomorrow morning . And I'd like to request an early morning call . Will that give you much trouble ?   Oh , no , never . What's the exact time you'd like us to call you tomorrow morning ?   Well , my train is due to take off at 7:25 a . m . I've no idea how long it'll take to drive to the railway station .   It won't take long . 20 minutes is enough . Is that OK if I call you at 6:30 a . m . ?   OK , thank you .   It's a pleasure . Good night . Have a good sleep . 